A REVIEW that NSW Minister for Transport Andrew Constance said found safety risks to cyclists near Newcastle's light rail amounts to an "extraordinary admission", Labor contends.

Minister for Transport Andrew Constance told a budget estimates hearing this week that a government review of safety measures around the Newcastle light rail had been conducted.

"While the crash that prompted this safety review was the first recorded cyclist crash along the mixed running alignment, it was evident throughout this review that road safety risks to cyclists did exist throughout the section," Mr Constance said.